Energy and Throughput Optimization of Wireless Mesh Networks with Continuous Power Control

Abstract : —Providing high data rates with minimum energy consumption is a crucial challenge for next generation wireless networks. There are few papers in the literature which combine these two issues. This paper focuses on multi-hop wireless mesh networks using a MAC layer based on S-TDMA (Spatial Time Di-vision Multiple Access). We develop an optimization framework based on linear programming to study the relationship between throughput and energy consumption. Our contributions are two-fold. First, we formulate and solve, using column generation, a new MILP to compute offline energy-throughput tradeoff curve. We use a physical interference model where the nodes can perform continuous power control and can use a discrete set of data rates. Second, we highlight network engineering insights. We show, via numerical results, that power control and multi-rate functionalities allow optimal throughput to be reached, with lower energy consumption, using a mix of single hop and multi-hop routes.
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Anis Ouni, Hervé Rivano, Fabrice Valois, Catherine Rosenberg. Energy and Throughput Optimization of Wireless Mesh Networks with Continuous Power Control. IEEE Transactions on Wireless Communications, Institute of Electrical and Electronics Engineers, 2015, 14 (2), pp.1131-1142. ⟨10.1109/TWC.2014.2364815⟩. ⟨hal-01085013⟩

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